Plastic packaging box blister processing device

By designing a specialized positioning mechanism, the problem of inconvenient mold replacement was solved, enabling rapid mold installation and disassembly, and improving production efficiency.

CN224210529UActive Publication Date: 2026-05-08SHANDONG HENGTAI PLASTICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG HENGTAI PLASTICS CO LTD
Filing Date
2025-04-21
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In existing technology, the upper and lower molds are fixedly connected, which makes disassembly troublesome when changing different types of packaging box molds, thus reducing production efficiency.

Method used

The first positioning mechanism and the second positioning mechanism are used for the quick installation and disassembly of the lower mold and the upper mold, respectively. They include a clamping plate, a clamping block, a moving rod, an L-shaped plate, a top plate, a tension spring, a positioning plate, a knob, a transmission rod and an elliptical wheel, as well as the cooperation of components such as a snap-fit ​​plate, a fixing plate, a positioning pin, a positioning block, a pull ring and a second spring.

Benefits of technology

It enables rapid installation and disassembly of the lower and upper molds, adapting to the production needs of different types of packaging boxes and improving work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of plastic packaging boxes, and particularly relates to a plastic packaging box blister processing device which comprises a bottom plate. The two sides of the bottom of the positioning frame are fixedly connected with the two sides of the top of the bottom plate; the air cylinder is fixedly mounted at the top of the positioning frame; the output of the air cylinder penetrates through the inner cavity of the positioning frame and is fixedly connected with the moving plate; the upper mold is fixedly mounted at the bottom of the movable plate; the positioning box is fixedly mounted at the top of the bottom plate; the lower mold is arranged at the top of the positioning box; the first positioning mechanisms are located on the two sides of the bottom of the lower mold, the lower mold can be quickly mounted and dismounted through matched use of the first positioning mechanisms, the upper mold can be quickly mounted and dismounted through the second positioning mechanisms, and therefore the packaging box production device can adapt to production of different types of packaging boxes; the working efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of plastic packaging box technology, and in particular to a plastic packaging box blister forming device. Background Technology

[0002] Blister molds refer to the molds used in blister packaging production. A flat plastic sheet is heated until softened, then vacuum-adhered to the surface of the mold. After cooling, it solidifies to form the blister packaging product. Currently, in food packaging, this not only enhances the appearance of the food but also improves the quality of the preserved food. With the development of the blister mold and food packaging industry, blister molds are widely used in making plastic food packaging. However, some molds have poor adsorption capacity and uneven adsorption, resulting in gaps between the plastic and the mold during adsorption.

[0003] Chinese patent document CN219191260U discloses a blister mold for plastic packaging boxes. This refers to the mold used in blister packaging production. It involves heating and softening a flat plastic sheet, then vacuum-adhering it to the surface of the mold. After cooling, the blister packaging product is formed. Currently, in food packaging, this not only enhances the appearance of the food but also improves the quality of the preserved food. With the development of the blister mold and food packaging industry, blister molds are widely used in making plastic food packaging. However, some molds have poor adsorption capacity and uneven adsorption, resulting in gaps between the plastic and the mold during adsorption.

[0004] The search revealed that the upper and lower molds of the device are fixedly connected to the device. When producing different types of packaging boxes, it is troublesome to change and disassemble the molds, which reduces production efficiency. Therefore, this utility model proposes a plastic packaging box blister forming device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that in the existing technology, both the upper and lower molds of the equipment are fixedly connected to the equipment, which makes it troublesome to change and disassemble the molds when producing different types of packaging boxes, thus reducing production efficiency. Therefore, a plastic packaging box blister forming device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A plastic packaging box blister forming device, comprising:

[0008] Base plate;

[0009] The positioning frame has its bottom sides fixedly connected to the top sides of the base plate;

[0010] A cylinder, which is fixedly mounted on the top of the positioning frame;

[0011] The cylinder output passes through the inner cavity of the positioning frame and is fixedly connected to the movable plate;

[0012] The upper mold is fixedly installed on the bottom of the movable plate;

[0013] A positioning box, which is fixedly installed on the top of the base plate;

[0014] The lower mold is located on top of the positioning box;

[0015] The first positioning mechanism is located on both sides of the bottom of the lower mold and is used to quickly position the lower mold.

[0016] The second positioning mechanism is located on both sides of the top of the upper mold and is used to quickly position the upper mold.

[0017] As a preferred embodiment of this utility model, the first positioning mechanism includes: a locking plate, a locking block, a moving rod, an L-shaped plate, a top plate, a tension spring, a first spring, a positioning plate, a knob, a transmission rod, and an elliptical wheel;

[0018] Both sides of the bottom of the lower mold are fixedly connected to the clamping plate. The bottom of the clamping plate extends through the inner cavity of the positioning box. There are two clamping blocks, which are set on both sides of the inner cavity of the positioning box. The front and rear sides of the opposite side of the two clamping plates are fixedly connected to the moving rods. The ends of the four moving rods away from the clamping blocks extend through the positioning box and are fixedly connected to the L-shaped plate. The ends of the four L-shaped plates away from the moving rods extend through the bottom plate and are fixedly connected to the top plate. There are two top plates. The front and rear sides of the opposite side of the two top plates are fixedly connected to the tension springs. There are four first springs. The four first springs are all sleeved on the surface of the four moving rods and located on the opposite side of the two clamping blocks. The front and rear sides of the bottom of the bottom plate are fixedly connected to the positioning plate. The knob is set on the front side of one of the positioning plates. The rear side of the knob is fixedly connected to the transmission rod. The transmission rod extends through one of the positioning plates and is rotatably connected to the other positioning plate through the rotating shaft. The elliptical wheel is fixedly installed on the surface of the transmission rod.

[0019] As a preferred embodiment of this utility model, the second positioning mechanism includes: a snap-fit ​​plate, a fixing plate, a positioning pin, a positioning block, a pull ring, and a second spring;

[0020] Both sides of the top of the upper mold are fixedly connected to the snap-fit ​​plate. The top of the snap-fit ​​plate passes through the moving plate. A limit hole is opened on the left side of the snap-fit ​​plate. Both sides of the top of the moving plate are fixedly connected to the fixed plate. A through hole is opened on the left side of the fixed plate. The positioning pin is slidably set in the inner cavity of the through hole. The opposite sides of the two positioning pins are fixedly connected to the pull ring. The opposite sides of the two positioning pins are fixedly connected to the positioning block. The opposite sides of the two positioning blocks pass through the inner cavity of the snap-fit ​​plate. There are two second springs. The two second springs are sleeved on the surface of the two positioning pins and located on the opposite sides of the two positioning blocks.

[0021] As a preferred embodiment of this utility model, the inner cavity of the positioning frame is provided with sliding grooves on both sides, the moving plate is provided with sliding rails on both sides, the sliding grooves and sliding rails are used in conjunction, the top of the positioning box is provided with insertion ports on both sides, the top of the bottom plate is provided with openings on the front and rear sides, the top of the moving plate is provided with limit grooves on both sides, and the bottom of the bottom plate is fixedly connected with support legs at the four corners.

[0022] As a preferred embodiment of this utility model, the top of the card block is provided with a first chamfer, and the ends of the two card plates that are far apart from each other are provided with a second chamfer.

[0023] As a preferred embodiment of this utility model, the bottom of the positioning block is provided with a second oblique angle.

[0024] Beneficial effects:

[0025] 1. The lower mold can be quickly installed and disassembled by using a combination of a clamping plate, clamping block, moving rod, L-shaped plate, top plate, tension spring, first spring, positioning plate, knob, transmission rod and elliptical wheel;

[0026] 2. The upper mold can be quickly installed and disassembled by using the snap-fit ​​plate, fixing plate, positioning pin, positioning block, pull ring and second spring.

[0027] In this invention, the lower mold can be quickly installed and disassembled through the use of the first positioning mechanism, and the upper mold can be quickly installed and disassembled through the second positioning mechanism, thereby adapting to the production of different types of packaging boxes and improving work efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a view of the positioning box and a cross-sectional view of the present invention.

[0030] Figure 3 This is a bottom view of the base plate and elliptical wheel of this utility model;

[0031] Figure 4This is a schematic diagram of the positioning frame and positioning block structure of this utility model.

[0032] In the diagram: 1. Base plate; 2. Positioning frame; 3. Cylinder; 4. Moving plate; 5. Upper mold; 6. Positioning box; 7. Lower mold; 8. Clamping plate; 9. Clamping block; 10. Moving rod; 11. L-shaped plate; 12. Top plate; 13. Tension spring; 14. First spring; 15. Positioning plate; 16. Knob; 17. Transmission rod; 18. Elliptical wheel; 19. Clamping plate; 20. Fixing plate; 21. Positioning pin; 22. Positioning block; 23. Pull ring; 24. Second spring. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0034] Example

[0035] Reference Figures 1-4 A plastic packaging box blister forming device, comprising:

[0036] Base plate 1;

[0037] Positioning frame 2, both sides of the bottom of positioning frame 2 are fixedly connected to the top two sides of base plate 1;

[0038] Cylinder 3 is fixedly installed on the top of positioning frame 2;

[0039] The output of the cylinder 3 passes through the inner cavity of the positioning frame 2 and is fixedly connected to the moving plate 4.

[0040] Upper mold 5 is fixedly installed at the bottom of movable plate 4;

[0041] Positioning box 6 is fixedly installed on the top of base plate 1;

[0042] Lower mold 7 is located on top of positioning box 6;

[0043] The first positioning mechanism is located on both sides of the bottom of the lower mold 7. The first positioning mechanism is used to quickly position the lower mold 7.

[0044] The second positioning mechanism is located on both sides of the top of the upper mold 5. The second positioning mechanism is used to quickly position the upper mold 5.

[0045] As a preferred embodiment of this utility model, the first positioning mechanism includes: a locking plate 8, a locking block 9, a moving rod 10, an L-shaped plate 11, a top plate 12, a tension spring 13, a first spring 14, a positioning plate 15, a knob 16, a transmission rod 17, and an elliptical wheel 18.

[0046] Both sides of the bottom of the lower mold 7 are fixedly connected to the clamping plate 8. The bottom of the clamping plate 8 extends through the inner cavity of the positioning box 6. There are two clamping blocks 9, which are located on both sides of the inner cavity of the positioning box 6. The front and rear sides of the opposite sides of the two clamping plates 8 are fixedly connected to the moving rods 10. The ends of the four moving rods 10 away from the clamping blocks 9 extend through the positioning box 6 and are fixedly connected to the L-shaped plate 11. The ends of the four L-shaped plates 11 away from the moving rods 10 extend through the bottom plate 1 and are fixedly connected to the top plate 12. There are two top plates 12. The front and rear sides of the opposite sides of the two top plates 12 are fixedly connected to the tension springs 13. There are four first springs 14, which are sleeved on the surface of the four moving rods 10 and located on the opposite side of the two clamping blocks 9. The front and rear sides of the bottom of the bottom plate 1 are fixedly connected to the positioning plate 15. The knob 16 is located on the front side of one of the positioning plates 15. Figure 3 The knob 16 shown is located on the front side of the front positioning plate 15. The rear side of the knob 16 is fixedly connected to the transmission rod 17. The transmission rod 17 passes through one of the positioning plates 15 and is rotatably connected to the other positioning plate 15 through a rotating shaft. The elliptical wheel 18 is fixedly installed on the surface of the transmission rod 17. The lower mold 7 can be quickly installed and disassembled through the cooperation of the clamping plate 8, clamping block 9, moving rod 10, L-shaped plate 11, top plate 12, tension spring 13, first spring 14, positioning plate 15, knob 16, transmission rod 17 and elliptical wheel 18.

[0047] As a preferred embodiment of this utility model, the second positioning mechanism includes: a snap-fit ​​plate 19, a fixing plate 20, a positioning pin 21, a positioning block 22, a pull ring 23, and a second spring 24.

[0048] Both sides of the top of the upper mold 5 are fixedly connected to the snap-fit ​​plate 19. The top of the snap-fit ​​plate 19 passes through the movable plate 4. A limit hole is opened on the left side of the snap-fit ​​plate 19. Both sides of the top of the movable plate 4 are fixedly connected to the fixed plate 20. A through hole is opened on the left side of the fixed plate 20. The positioning pin 21 is slidably disposed in the cavity of the through hole. The opposite sides of the two positioning pins 21 are fixedly connected to the pull ring 23. The opposite sides of the two positioning pins 21 are fixedly connected to the positioning block 22. The opposite sides of the two positioning blocks 22 pass through the cavity of the snap-fit ​​plate 19. There are two second springs 24. The two second springs 24 are sleeved on the surface of the two positioning pins 21 and located on the opposite side of the two positioning blocks 22. The upper mold 5 can be quickly installed and disassembled through the cooperation of the snap-fit ​​plate 19, the fixed plate 20, the positioning pins 21, the positioning blocks 22, the pull ring 23 and the second springs 24.

[0049] As a preferred embodiment of this utility model, the positioning frame 2 has sliding grooves on both sides of its inner cavity, and the moving plate 4 has sliding rails on both sides. The sliding grooves and sliding rails are used in conjunction. The positioning box 6 has insertion slots on both sides of its top. The bottom plate 1 has openings on both the front and rear sides of its top. The moving plate 4 has limit grooves on both sides of its top. The bottom of the bottom plate has support legs fixedly connected to the four corners. The use of sliding grooves and sliding rails can improve the stability of the moving plate 4 when it moves. The insertion slots facilitate the insertion of the card plate 8 into the positioning box 6. The openings facilitate the movement of the L-shaped plate 11. The limit grooves on the moving plate 4 allow the insertion of the card plate 19.

[0050] As a preferred embodiment of this utility model, the top of the card block 9 is provided with a first bevel, and the ends of the two card plates 8 that are far apart from each other are provided with a second chamfer. By using the first bevel of the card block 9 and the second chamfer of the card plate 8 in combination, it is convenient to move the card block 9 when the card plate 8 is inserted.

[0051] As a preferred embodiment of this utility model, the bottom of the positioning block 22 is provided with a second oblique angle. The second oblique angle of the positioning block 22 facilitates the movement of the positioning block 22 when the snap-fit ​​plate 19 moves.

[0052] With the above structure, the lower mold 7 can be quickly installed and disassembled through the use of the first positioning mechanism, and the upper mold 5 can be quickly installed and disassembled through the second positioning mechanism, thereby adapting to the production of different types of packaging boxes and improving work efficiency.

[0053] It should be noted that the specific model of cylinder 3 to be used is to be selected by those skilled in the art, and the above-mentioned cylinder 3 and other related technologies are all existing technologies, which will not be elaborated on in this solution.

[0054] The working principle of this utility model is as follows: When the mold needs to be replaced, the worker first rotates the knob 16. The knob 16 drives the transmission rod 17 and the elliptical wheel 18 to rotate. The elliptical wheel 18 drives the two top plates 12 to move. The top plates 12 drive the L-shaped plate 11, the moving rod 10, and the locking block 9 to move. When the locking block 9 moves, it separates from the locking plate 8. Then, the worker can directly remove the lower mold 7. When the upper mold 5 needs to be replaced, the worker pulls the pull ring 23. The pull ring 23 drives the positioning pin 21 and the positioning block 22 to move. When the positioning block 22 moves, it separates from the locking plate 19, thereby disassembling the upper mold 5. A new mold is then ready for replacement. When changing the mold, first reset the locking block 9. Then, the worker inserts the two locking plates 8 at the bottom of the underground mold 7 into the slot. The locking plates 8 move downwards, causing the locking block 9 to move. After the locking plates 8 have moved, the first spring 14 and the tension spring 13 will simultaneously reset the locking block 9 and the top plate 12. Then, the locking plates 8 are positioned. When installing the upper mold 5, the locking plate 19 is inserted into the limiting groove. When the locking plate 19 moves upwards, it causes the positioning block 22 to move. After the locking plate 19 has moved, the positioning block 22 will be inserted into the limiting hole by the pressure of the second spring 24. Then, the upper mold 5 is quickly installed, thereby improving production efficiency.

[0055] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plastic packaging box blister forming device, characterized in that, include: Base plate (1); Positioning frame (2), the bottom two sides of the positioning frame (2) are fixedly connected to the top two sides of the base plate (1); Cylinder (3), which is fixedly installed on the top of the positioning frame (2); The moving plate (4) has the output of the cylinder (3) passing through the inner cavity of the positioning frame (2) and being fixedly connected to the moving plate (4); Upper mold (5), which is fixedly installed on the bottom of the movable plate (4); Positioning box (6), which is fixedly installed on the top of the base plate (1); The lower mold (7) is disposed on the top of the positioning box (6); The first positioning mechanism is located on both sides of the bottom of the lower mold (7). The first positioning mechanism is used to quickly position the lower mold (7). The second positioning mechanism is located on both sides of the top of the upper mold (5) and is used to quickly position the upper mold (5).

2. The plastic packaging box blister forming device according to claim 1, characterized in that, The first positioning mechanism includes: a locking plate (8), a locking block (9), a moving rod (10), an L-shaped plate (11), a top plate (12), a tension spring (13), a first spring (14), a positioning plate (15), a knob (16), a transmission rod (17), and an elliptical wheel (18); The bottom sides of the lower mold (7) are fixedly connected to the clamping plate (8). The bottom of the clamping plate (8) extends through the inner cavity of the positioning box (6). There are two clamping blocks (9), which are located on both sides of the inner cavity of the positioning box (6). The front and rear sides of the opposite sides of the two clamping plates (8) are fixedly connected to the moving rods (10). The ends of the four moving rods (10) away from the clamping blocks (9) all penetrate the positioning box (6) and are fixedly connected to the L-shaped plate (11). The ends of the four L-shaped plates (11) away from the moving rods (10) all penetrate the bottom plate (1) and are fixedly connected to the top plate (12). There are two top plates (12), which are opposite to each other. The front and rear sides of one side are fixedly connected to the tension spring (13). There are four first springs (14). The four first springs (14) are all sleeved on the surface of the four moving rods (10) and located on the opposite side of the two locking blocks (9). The front and rear sides of the bottom of the base plate (1) are fixedly connected to the positioning plate (15). The knob (16) is set on the front side of one of the positioning plates (15). The rear side of the knob (16) is fixedly connected to the transmission rod (17). The transmission rod (17) passes through one of the positioning plates (15) and is rotatably connected to the other positioning plate (15) through the rotating shaft. The elliptical wheel (18) is fixedly installed on the surface of the transmission rod (17).

3. The plastic packaging box blister forming device according to claim 1, characterized in that, The second positioning mechanism includes: a snap-fit ​​plate (19), a fixing plate (20), a positioning pin (21), a positioning block (22), a pull ring (23), and a second spring (24); The top two sides of the upper mold (5) are fixedly connected to the snap-fit ​​plate (19). The top of the snap-fit ​​plate (19) passes through the moving plate (4). A limit hole is opened on the left side of the snap-fit ​​plate (19). The top two sides of the moving plate (4) are fixedly connected to the fixed plate (20). A through hole is opened on the left side of the fixed plate (20). The positioning pin (21) is slidably set in the cavity of the through hole. The opposite sides of the two positioning pins (21) are fixedly connected to the pull ring (23). The opposite sides of the two positioning pins (21) are fixedly connected to the positioning block (22). The opposite sides of the two positioning blocks (22) pass through the cavity of the snap-fit ​​plate (19). There are two second springs (24). The two second springs (24) are sleeved on the surface of the two positioning pins (21) and located on the opposite side of the two positioning blocks (22).

4. The plastic packaging box blister forming device according to claim 1, characterized in that, The positioning frame (2) has sliding grooves on both sides of its inner cavity, and the moving plate (4) has sliding rails on both sides. The sliding grooves and sliding rails are used together. The positioning box (6) has slots on both sides of its top. The bottom plate (1) has openings on both the front and rear sides of its top. The moving plate (4) has limit grooves on both sides of its top. The bottom plate (1) has support legs fixedly connected to its four corners.

5. The plastic packaging box blister forming device according to claim 2, characterized in that, The top of the card block (9) is provided with a first chamfer, and the ends of the two card plates (8) that are far apart from each other are provided with a second chamfer.

6. The plastic packaging box blister forming device according to claim 3, characterized in that, The bottom of the positioning block (22) is provided with a second bevel.

Citation Information

Patent Citations

  • Plastic suction mold of plastic packaging box

    CN219191260U